We have forces and moments from the client at the interface.
We have 2 horizontal parellel lines 1.5m apart coming out in X dir. Then elbow and up 2m(risers); then elbow (into Z/-Z dir) and the 2 lines connect to each other. Middle is a tee going horizontal(X dir) with a lateral (Z) guide on the horizontal run.
I believe the rotation is from Mx(expansion from tee X riser hieght). The 2 parellel lines are sitting on a moving Y+ that we could not stop the rotation. 5 deg rotation starts from the interface.
Could not attach any sketch. Hope you get the picture. Thanks.
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SL-G